Home / 20,243.33-27,935.52-11,290.98

Finding the Fourth Proportional to 20,243.33, 27,935.52 and 11,290.98

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Solution

The fourth proportional to 20,243.33, 27,935.52 and 11,290.98 is: 15,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.33 : 27,935.52 = 11,290.98 : x
  2. Step 2: Convert to fraction form
    20,243.33/27,935.52 = 11,290.98/x
  3. Step 3: Cross multiply
    20,243.33x = 27,935.52 × 11,290.98
  4. Step 4: Simplify right side
    20,243.33x = 315,419,397.61
  5. Step 5: Solve for x
    x = 315,419,397.61/20,243.33
  6. Step 6: Final answer
    x = 15,581.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.